.docText {
  position: fixed;
  top: 0;
  z-index: 10;
  background-color: transparent;
}
.container {
  position: fixed;
  top: 0; right: 0; bottom: 0; left: 0;
  z-index: 1;
}
#curVideo {
  transform: scaleX(-1);
}
.flip {
  position: absolute;
  bottom: 50px;
  left: 50px;
  font-size: 16px;
  color: white;
  padding: 6px 8px;
  background-color: rgba(0, 0, 0, .5);
  border-radius: 24px;
}